[PATCH] D159331: [ADT][NFC] Remove some redundant code

[panyuntao via Phabricator via llvm-commits]

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Some typetraits are defined twice, delete this part of the code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159331

Files:
  llvm/include/llvm/ADT/STLExtras.h


Index: llvm/include/llvm/ADT/STLExtras.h
===================================================================
--- llvm/include/llvm/ADT/STLExtras.h
+++ llvm/include/llvm/ADT/STLExtras.h
@@ -1484,16 +1484,6 @@
 template <int N> struct rank : rank<N - 1> {};
 template <> struct rank<0> {};
 
-/// traits class for checking whether type T is one of any of the given
-/// types in the variadic list.
-template <typename T, typename... Ts>
-using is_one_of = std::disjunction<std::is_same<T, Ts>...>;
-
-/// traits class for checking whether type T is a base class for all
-///  the given types in the variadic list.
-template <typename T, typename... Ts>
-using are_base_of = std::conjunction<std::is_base_of<T, Ts>...>;
-
 namespace detail {
 template <typename... Ts> struct Visitor;
 


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